It’s nice to know that New York’s Finest are quick to respond to any potential threat in a congested area like Times Square.

But there’s such a thing as overreacting — especially when it’s clear that no one’s life is in danger.

That’s just what happened yesterday morning for two hours as a self-promoting aspiring rapper shut down traffic in the heart of Midtown as far north as 57th Street while he sat perched atop a traffic signal.

Yes — two hours.

The man, who has a long history of disrupting live TV broadcasts, had been ejected from the MTV studios. So he climbed atop a 20-foot traffic-light pole at 44th Street and Seventh Avenue and refused to get down.

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PHOTOS: WANNABE RAPPER CLIMBS POLE IN TIMES SQ.